News:


  • April 18, 2024, 05:08:35 AM

Login with username, password and session length

« previous next »
Pages: [1]   Go Down

Author Topic: 1/2A combat  (Read 2023 times)

Offline minnesotamodeler

  • 2014 Supporters
  • Trade Count: (0)
  • Admiral
  • *
  • Posts: 2335
  • Me and my Chief Engineer
    • Minnesotamodeler
1/2A combat
« on: September 17, 2007, 04:13:08 PM »
OK, disclaimers first: I know most don't bother with 1/2A combat; I know virtually everyone uses foamies these days; nonetheless, here's my new, improved Rumbler, 1/2A built-up balsa wood plane.  Really sorta 3/4A I guess, I actually often use a Norvel .061 on it, since the only kinda fast .049s I have are VAs.  "Improved" in being lighter, simpler build, sidewinder engine mount (original used upright, finally gave it up when I got too tired of breaking engine mounts in inverted mishaps). 30" span, 180 sq. in., 5 oz. with engine.

--Ray
Logged
--Ray 
Roseville MN (St. Paul suburb, Arctic Circle)
AMA902472

Offline ray copeland

  • 24 supporter
  • Trade Count: (0)
  • Captain
  • *
  • Posts: 871
Re: 1/2A combat
« Reply #1 on: September 17, 2007, 07:14:46 PM »
Hey Ray,  will this feature a pressure tank?
Logged
Ray from Greensboro, North Carolina , six laps inverted so far with my hand held vertically!!! (forgot to mention, none level!) AMA# 902150

Offline minnesotamodeler

  • 2014 Supporters
  • Trade Count: (0)
  • Admiral
  • *
  • Posts: 2335
  • Me and my Chief Engineer
    • Minnesotamodeler
Re: 1/2A combat
« Reply #2 on: September 18, 2007, 08:52:02 AM »
Quote from: ray copeland on September 17, 2007, 07:14:46 PM
Hey Ray,  will this feature a pressure tank?

Yes, I'll post the pics of it a little further along.  Surgical tubing tank in a film cannister container.

These things turn 'way too fast for suction to consistently feed.

--Ray
Logged
--Ray 
Roseville MN (St. Paul suburb, Arctic Circle)
AMA902472

Offline minnesotamodeler

  • 2014 Supporters
  • Trade Count: (0)
  • Admiral
  • *
  • Posts: 2335
  • Me and my Chief Engineer
    • Minnesotamodeler
Re: 1/2A combat
« Reply #3 on: September 18, 2007, 07:02:43 PM »
Progress pictures:  Nose details, and pressure tank setup...vertical cannister because of space limitations.  Pretty neat little pinch-off valve, huh?  Handy enough to flip over to the "open" mode while the engine is running its prime out.

Also a coupla detail shots of my over/under leadouts.

--Ray
« Last Edit: September 18, 2007, 07:50:52 PM by minnesotamodeler »
Logged
--Ray 
Roseville MN (St. Paul suburb, Arctic Circle)
AMA902472

Offline minnesotamodeler

  • 2014 Supporters
  • Trade Count: (0)
  • Admiral
  • *
  • Posts: 2335
  • Me and my Chief Engineer
    • Minnesotamodeler
Re: 1/2A combat
« Reply #4 on: October 03, 2007, 12:23:24 PM »
Finished pics.  Not yet flown. 5 oz. RTF.

--Ray
Logged
--Ray 
Roseville MN (St. Paul suburb, Arctic Circle)
AMA902472

Offline john e. holliday

  • 24 supporter
  • Trade Count: (0)
  • Admiral
  • *
  • Posts: 22769
Re: 1/2A combat
« Reply #5 on: October 05, 2007, 09:31:26 PM »
How about a set of plans, or is this going to be a kit?  Looks good.  Have fun,  DOC Holliday
Logged
John E. "DOC" Holliday
10421 West 56th Terrace
Shawnee, KANSAS  66203
AMA 23530  Have fun as I have and I am still breaking a record.

Offline minnesotamodeler

  • 2014 Supporters
  • Trade Count: (0)
  • Admiral
  • *
  • Posts: 2335
  • Me and my Chief Engineer
    • Minnesotamodeler
Re: 1/2A combat
« Reply #6 on: October 06, 2007, 07:28:20 AM »
Quote from: john e. holliday on October 05, 2007, 09:31:26 PM
How about a set of plans, or is this going to be a kit?  Looks good.  Have fun,  DOC Holliday

Most likely a kit, Doc...offered in the Spring, maybe.

--Ray
Logged
--Ray 
Roseville MN (St. Paul suburb, Arctic Circle)
AMA902472

Offline David Miller

  • Trade Count: (0)
  • Lieutenant
  • ***
  • Posts: 92
  • CL, RC, Hunting and Fishing!
Re: 1/2A combat
« Reply #7 on: January 08, 2008, 01:32:04 PM »
Anything new on this?? Still flying? Kit?
Logged
MSgt (RET) David G. Miller
AMA 560263

Offline Paul Smith

  • Moderator
  • Trade Count: (0)
  • Admiral
  • *****
  • Posts: 5800
1 cc Events
« Reply #8 on: January 08, 2008, 06:37:14 PM »
I really wish people would call events with .061's by the their true name, "1 cc". 

1/2A means under .050, and a we shouldn't be calling 1 cc scale and combat "1/2A".  Didn't Alice in Wonderland have quote about such things?

Hey, there's nothing bad about an .061, it's just not 1/2A.
Logged
Paul Smith

Offline minnesotamodeler

  • 2014 Supporters
  • Trade Count: (0)
  • Admiral
  • *
  • Posts: 2335
  • Me and my Chief Engineer
    • Minnesotamodeler
Re: 1/2A combat
« Reply #9 on: January 08, 2008, 07:38:56 PM »
You're right, maybe "3/4A" would be more accurate.  Not really "A" class, which includes .15s!

David, the plane has been flown many times, a few mods made (trimmed-down stabilator is the biggest one) and is about ready to kit.  I'll probably add it to my website in the Spring, along with the new Skywriter. 
Logged
--Ray 
Roseville MN (St. Paul suburb, Arctic Circle)
AMA902472

Offline David Miller

  • Trade Count: (0)
  • Lieutenant
  • ***
  • Posts: 92
  • CL, RC, Hunting and Fishing!
Re: 1/2A combat
« Reply #10 on: January 08, 2008, 09:17:32 PM »
Hey Ray, Thanks, that skywriter looks pretty neat also.
Logged
MSgt (RET) David G. Miller
AMA 560263

Offline john e. holliday

  • 24 supporter
  • Trade Count: (0)
  • Admiral
  • *
  • Posts: 22769
Re: 1/2A combat
« Reply #11 on: January 09, 2008, 11:39:14 AM »
Just think in merry olde England I believe 1/2A goes up to include .09 engines.  An .061 is not that much different is it?  Anyway Ray keep us posted on the kit.  DOC Holliday
Logged
John E. "DOC" Holliday
10421 West 56th Terrace
Shawnee, KANSAS  66203
AMA 23530  Have fun as I have and I am still breaking a record.

Advertise Here
Pages: [1]   Go Up
« previous next »
Tags:
 


Advertise Here